Disclaimer: I, sadly, don't own anything. J.K. Rowling does.
This takes place as if Voldemort is already defeated, but the final battle never really took place. Snape is alive, and so is anyone who died during the final battle, but Sirius is still dead. It's during Harry's seventh year.
The great hall was silent as everyone stared with gaping mouths as they watched their dour potions professor holding hands with the boy-who-lived as they walked towards the gryffindor table. Still, nobody spoke as they watched them share a chaste kiss and Harry whisper something into Snape's ear that made the man's pale cheeks turn a light pink. That seemed to knock everyone out of it.
Everyone started talking at once, discussing what had just happened, but the gryffindors were the loudest. Every one of them were crowding Harry, demanding answers. He simply sat there as they tried to yell over each other.
As he got his breakfast, he said "I'm not answering any questions, so you can all stop asking and let me eat in peace, please." That shut everyone up except for his two best friends.
"Why didn't you tell us, Harry?" Hermione asked, sounding hurt.
"And why the bloody hell Snape? What ever happened to dating Ginny?" Ron yelled.
Harry sighed. "Look, guys, can I explain this after breakfast, with Sev?"
"Sev? He actually lets you you call him that!" Ron choked.
"Alright, but you better explain then!" Hermione said after nudging a still shocked Ron.
"I will, promise."